Research Article
An Adaptive Noise Reduction Method Based on Improved Dislocation Superposition Method for Abnormal Noise Fault Component of Automotive Engine
Table 3
Error of cylinder knock fault signal period.
| | j | 1 | 2 | 3 | 4 | 5 | 6–8 | 9 | 10 | 11 | 12 | | Number of sampling points of each period (nc) | 3204 | 2889 | 3058 | 2857 | 3161 | 8708 | 3161 | 2897 | 3208 | 2917 | | Actual number of sampling points of each period (na) | 3153 | 2953 | 3025 | 2846 | 3174 | 8680 | 3166 | 2917 | 3190 | 2944 | | Error (Δ) | 50 | −64 | 33 | 11 | −13 | 28 | −5 | −20 | 18 | −27 |
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